Weather Comparison
Side-by-side weather comparison for October
| Metric | Bangkok | Siem Reap | Better |
|---|---|---|---|
| Average HighHigher is warmer | 30°C (86°F) | 30°C (86°F) | Tie |
| Average LowHigher is milder | 24°C (75°F) | 24°C (75°F) | Tie |
| Rain DaysFewer is drier | 21 days▲ | 23 days | Bangkok |
| PrecipitationLess is drier | 194 mm▲ | 225 mm | Bangkok |
| Sunshine HoursMore is sunnier | 9h/day | 10h/day▲ | Siem Reap |
| HumidityLower is more comfortable | 82% | 82% | Tie |
| UV IndexLower is safer | 6 | 6 | Tie |
| Wind SpeedCalmer is better | 11 km/h | 11 km/h | Tie |
Bangkok and Siem Reap are closely matched in October. Neither city has a clear advantage across all metrics. Your decision should come down to personal preference, cultural interests, and travel logistics rather than weather alone.
Bangkok can feel quite hot at 30°C, so plan for heat. Siem Reap runs hot at 30°C.
For travelers who prioritize dry weather, Bangkok is the stronger choice in October. Siem Reap receives 1 more hour of sunshine per day, which matters for sightseeing and outdoor activities.
Bangkok reaches an average high of 30°C (86°F) and drops to 24°C (75°F) at night during October. The daily temperature range is 6°C, meaning relatively stable temperatures from day to night.
Siem Reap averages 30°C (86°F) for the high and 24°C (75°F) for the low, with a daily range of 6°C. The two cities feel quite similar in terms of temperature.
Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in October.
Bangkok receives approximately 194 mm of rainfall across 21 rain days during October. Rain is frequent, so waterproof gear is essential.
Siem Reap sees 225 mm over 23 rain days. That makes Bangkok the drier option by 2 rain days and 31 mm of total precipitation.
Both cities share similar humidity levels at 82%.
Highs of 30°C, lows of 24°C, 21 rain days
Highs of 30°C, lows of 24°C, 23 rain days
Pack for both: lightweight breathable clothing, sunscreen SPF 50+, sunglasses, a wide-brimmed hat, waterproof jacket, compact umbrella, waterproof shoes, moisture-wicking fabrics. These items are useful in either destination during October.
The table below shows average high temperatures and rain days for every month. October is highlighted for quick reference.
| Month | Bangkok | Siem Reap | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 31°C | 3d | 31°C | 2d |
| Feb | 32°C | 3d | 33°C | 3d |
| Mar | 34°C | 6d | 34°C | 9d |
| Apr | 35°C | 11d | 34°C | 15d |
| May | 33°C | 21d | 33°C | 22d |
| Jun | 32°C | 22d | 32°C | 21d |
| Jul | 32°C | 23d | 32°C | 22d |
| Aug | 31°C | 24d | 31°C | 25d |
| Sep | 31°C | 26d | 30°C | 26d |
| Oct | 30°C | 21d | 30°C | 23d |
| Nov | 31°C | 7d | 30°C | 9d |
| Dec | 31°C | 2d | 30°C | 3d |
Bangkok Weather in October
Full forecast, packing tips, and activities
Siem Reap Weather in October
Full forecast, packing tips, and activities